KR20190007407A - Electronic device, information processing device and information processing method - Google Patents

Abstract

The present disclosure relates to electronic devices, information processing devices, and information processing methods. According to one embodiment, the electronic device on the base station side includes processing circuitry. The processing circuit controls the user equipment to obtain reference information on the signal strength on the specific spectrum resource in a predetermined area from the base station and controls the user equipment in the event that the user equipment is located in a predetermined area, And to adjust the parameters for controlling the user equipment to perform the near field service communication in a predetermined area based on the reference information and the detected signal strength to achieve the expected communication performance, The parameters affect the connection rate and / or transmission reliability of the local service communication.

Description

Electronic device, information processing device and information processing method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present disclosure relates generally to the field of wireless communications, and more particularly to an electronic device, an information processing apparatus and an information processing method on a base station side, and an electronic device, an information processing apparatus and an information processing method on the user equipment side.

Proximity-based service (ProSe) communication in a cellular network, such as device-to-device (D2D) communication, is typically performed during a transmission process, Quot; service " In particular, as a typical scenario for Internet applications, D2D communications may include vehicle-to-vehicle (V2V) communications, and the like.

Taking V2V communication as an example, V2V communication can be used for driving safety management between the interior of the vehicle system and other vehicles very close to the vehicle, for example, to reduce the frequency of traffic accidents. Currently, vehicle-mounted communication devices are connected to a network by V2V communication, and vehicle-mounted communication devices can transmit and share information via a network, thereby improving vehicle driving safety. The intelligent transport system (ITS) working group and the IEEE 802.11p working group of the european telecommunication standards institute (ETSI) proposed corresponding intelligent transport technology standards. LTE-A of the Third Generation Partnership Project (3GPP) also initiated research into vehicle-to-everything (V2X) projects supported by LTE. The Internet of vehicles is primarily intended to ensure that vehicle driving conditions or accident warning information can be reliably and quickly exchanged between vehicles, thereby ensuring driving safety and reducing accident impact.

In order to provide a basic understanding of certain aspects of the disclosure, a brief summary of embodiments of the present disclosure is described below. It should be understood that this summary is not exhaustive and is not exhaustive of the disclosure. This Summary is not intended to determine key or critical portions of the disclosure, nor is it intended to limit the scope of the disclosure. The purpose of this summary is to provide some concepts of the present disclosure in a simplified form as a preface to the following detailed description.

According to one embodiment, an electronic device on the user equipment side is provided. Such electronic devices include processing circuits. The processing circuitry may control the user equipment to obtain reference information of signal strength on a specific spectrum resource from a base station from a base station and to control the user equipment to determine if a user equipment is located in a predetermined area, To control the user equipment to adjust parameters for performing proximity-based service communications in a predetermined area based on the reference information and the sensed signal strength, to achieve desired communication performance . These parameters affect the acceptance rate and / or transmission reliability of the proximity-based service communication.

According to another embodiment, an information processing apparatus on the user equipment side is provided. Such an information processing apparatus includes a transmitting / receiving device and a processing circuit. The processing circuit controls the transmitting and receiving device to obtain reference information of the signal strength on a specific spectrum resource from a base station from the base station and to control the user equipment so that when a user equipment is located in a predetermined area, To control the user equipment to adjust parameters for performing proximity-based service communications in a predetermined area based on the reference information and the sensed signal strength, to achieve desired communication performance . These parameters affect the acceptance rate and / or transmission reliability of the proximity-based service communication.

According to another embodiment, a method of information processing on the user equipment side is provided. This information processing method includes the steps of obtaining, from a base station, reference information of a signal strength on a specific spectrum resource in a predetermined area, detecting signal strength on a specific spectrum resource when the user equipment is located in a predetermined area, And adjusting parameters for performing proximity-based service communication in a predetermined area based on the reference information and the sensed signal strength to achieve desired communication performance. These parameters affect the acceptance rate and / or transmission reliability of the proximity-based service communication.

According to another embodiment, an electronic device on the base station side is provided. Such electronic devices include processing circuits. The processing circuitry controls the base station to obtain movement information (including location, direction of movement, speed of movement, or target movement path) of the target user equipment, and based on the movement information, the target user equipment is about to enter a predetermined area The base station is configured to control the base station to transmit to the target user equipment a reference value of a parameter for performing reference information of signal strength on a specific spectrum resource and / or proximity-based service communication in a predetermined area.

According to another embodiment, an information processing apparatus on the base station side is provided. Such an information processing apparatus includes a transmitting / receiving device and a processing circuit. The processing circuit controls the base station to acquire movement information of the target user equipment. When it is determined that the target user equipment is about to enter the predetermined area based on the movement information, the processing circuit controls the transmitting / To transmit to the target user equipment a reference value of signal strength on the resource and / or a reference value of a parameter for performing proximity-based service communication.

According to another embodiment, a method of information processing on the base station side is provided. This information processing method includes the steps of acquiring movement information of the target user equipment and determining whether the target user equipment is about to enter a predetermined area based on the movement information, And transmitting a reference value of a parameter for performing the reference information and / or the proximity-based service communication to the target user equipment.

According to embodiments of the present disclosure, even in areas not covered by the network infrastructure signal, the user equipment may autonomously perform parameter adjustments to improve the tolerance of the target service and / or transmission reliability.

The present disclosure may be better understood with reference to the following description taken in conjunction with the following drawings. The same or similar elements are denoted by the same or similar reference numerals throughout the drawings. The drawings, together with the detailed description that follows, are included in the description, form a part of the description, and further illustrate preferred embodiments of the disclosure and are used to illustrate by example the principles and advantages of the disclosure.
1 is a block diagram illustrating an exemplary configuration of an electronic device on the user equipment side according to an embodiment of the present disclosure;
2 is a block diagram showing an example of the configuration of an electronic device on the user equipment side according to another embodiment of the present disclosure.
3 is a block diagram showing an example of the configuration of an information processing apparatus on the user equipment side according to an embodiment of the present disclosure;
4 is a flowchart showing an example of a process of an information processing method on the user equipment side according to an embodiment of the present disclosure.
5 is a block diagram showing an example of the configuration of an electronic device on the base station side according to an embodiment of the present disclosure.
6 is a block diagram showing a configuration example of an electronic device on the base station side according to another embodiment of the present disclosure.
7 is a block diagram showing a configuration example of an information processing apparatus on the base station side according to an embodiment of the present disclosure.
8 is a flowchart showing an example of a process of an information processing method on the base station side according to an embodiment of the present disclosure.
9 is a block diagram showing an example of the configuration of an electronic device on the user equipment side according to an embodiment of the present disclosure.
10 is a block diagram showing an example of the configuration of an information processing apparatus on the user equipment side according to an embodiment of the present disclosure.
11 is a block diagram showing a configuration example of an electronic device on the base station side according to an embodiment of the present disclosure.
12 is a block diagram showing a configuration example of an information processing apparatus on the base station side according to an embodiment of the present disclosure.
13 is a schematic diagram illustrating an exemplary process performed between a base station and user equipment in accordance with one embodiment.
14 is a schematic diagram illustrating an exemplary process performed between a base station and user equipment in accordance with one embodiment.
15 is a schematic diagram illustrating an exemplary process performed between a base station and user equipment in accordance with one embodiment.
16 is a schematic diagram showing a failure rate estimation process.
17 is a schematic diagram illustrating an exemplary process performed between a base station and user equipment in accordance with one embodiment.
18 is a block diagram of an exemplary structure of a computer for implementing a method and device in accordance with the present disclosure.
19 is a block diagram illustrating a schematic configuration example of a smartphone to which the techniques of the present disclosure can be applied.
20 is a block diagram showing a schematic configuration example of an evolution node base station (eNB) to which the description of the present disclosure can be applied.
21 is a block diagram showing a schematic configuration example of a car navigation apparatus to which the technique of the present disclosure can be applied.

In the following, embodiments of the present disclosure are described with reference to the drawings. The elements and features described in one drawing or one embodiment of the present disclosure may be combined with elements and features described in one or more of the other drawings or embodiments. It should be noted that, for clarity, the display and description of components and processes that are not related to the present disclosure or known to those of ordinary skill in the art are omitted from the drawings and examples.

As shown in FIG. 1, the electronic device 100 on the user equipment side according to one embodiment includes a processing circuit 110. The processing circuitry 110 may be implemented, for example, with a particular chip, chipset, or central processing unit (CPU).

The processing circuit 110 includes an acquisition unit 111, a sensing unit 113, and a coordination unit 115. Although the acquisition unit 111, the sensing unit 113 and the coordination unit 115 are shown as functional blocks in Figure 1, the functions of the acquisition unit 111, sensing unit 113 and coordination unit 115 are collectively Processing circuit 110 and is not necessarily implemented by actual individual components within the processing circuitry 110. [ 1, the electronic device 100 may include a plurality of processing circuits and may include an acquisition unit 111, a sensing unit 113, and a coordinating unit (not shown) 115 may be distributed to a plurality of processing circuits such that a plurality of processing circuits cooperatively operate to implement these functions.

Acquisition unit 111 is configured to control user equipment to obtain reference information of signal strength on a specific spectral resource from a base station in a predetermined area.

The predetermined region may be, for example, an area not covered by the communication network to which the user equipment belongs, and the user equipment may autonomously perform related operations, such as described below, based on the reference information obtained when not covered by the network Can be performed. However, the present disclosure is not limited thereto. The predetermined region described above may be set according to specific applications, and the predetermined region may include an area covered by the network. That is, the user equipment may also autonomously perform related operations based on the obtained reference information, even when covered by the network.

Specific spectrum resources may include, for example, spectral resources allocated to vehicle communications (corresponding to user equipment vehicles) or spectrum resources on unlicensed frequency bands.

The signal strength on a particular spectrum resource may reflect the density or number of other user equipment operating on a particular spectrum resource. If the current user equipment performs proximity-based service communication using a specific spectrum resource in the target area, the other user equipment acts as interference sources in the proximity-based service communication. The reference information may reflect or include a predetermined correspondence between the reference value of the parameter and the signal strength on the particular spectral resource to meet a predetermined tolerance and / or transmission reliability of the proximity-based service communication on the specific spectral resource. The reference information may include, for example, a user equipment operating at the current reference value of the parameter and a maximum allowable signal strength < RTI ID = 0.0 > . ≪ / RTI >

The proximity-based service communication may include, for example, machine type communication (MTC), D2D communication, V2X communication, and internet of things (IOT) communication. V2X communications may include V2V communications, vehicle-to-pedestrian (V2P) communications, vehicle-to-infrastructure (V2I) communications, and the like.

The reference information may be held and maintained by the base station. The base station can acquire the reference information in various ways. For example, the base station may estimate reference information in a predetermined region based on historical data of the entire network (e.g., number of user equipments, distribution of user equipments, use of spectrum resources and signal strength). Alternatively, the base station may obtain location and movement information of the user equipment that the base station is responsible for obtaining the number of vehicles entering the predetermined area, and then estimate the reference information using the regular service model . Alternatively, the user equipment may itself store the measurement results in the target area separately, report the measurement results to the base stations, if they are covered by the signal, share the measurement results among the base stations, The base station at the edge of the determined area can determine the reference information based on the measurement results.

The sensing unit 113 is configured to control the user equipment to sense the signal strength on a specific spectrum resource when the user equipment is located in a predetermined area.

As described above, the reference information obtained from the base station under the control of the acquisition unit 111 is, for example, an estimate of the signal strength in a predetermined area obtained based on historical data or statistical data, The signal strength detected under control corresponds to the actual measured value. The sensing unit 113 controls the user equipment to perform signal sensing using, for example, energy sensing or feature sensing.

The coordination unit 115 is configured to control the user equipment to achieve the desired communication performance by adjusting the parameters for performing proximity-based service communication in a predetermined area based on the obtained reference information and the sensed signal strength . These parameters affect the acceptance rate and / or transmission reliability of the proximity-based service communication.

The parameters for performing proximity-based service communication in a predetermined area include, for example, available channel evaluation (CCA) thresholds for connecting to specific spectrum resources, frequency of transmitting messages using proximity-based service communication and / Or frequency of transmissions, and signal transmission power of a proximity-based service communication.

The CCA threshold and the frequency / frequency of sending the message may affect the acceptance rate of the proximity-based service communication and the signal transmit power may affect the transmission reliability of the proximity-based service communication. More particularly, where the interference strength is constant, a small CCA threshold or a high frequency of sending a message corresponds to a high tolerance of the user equipment for proximity-based service communication. Similarly, when the interference strength is constant, strong signal transmission power corresponds to high transmission reliability of the proximity-based service communication.

The reference information may also be used to determine whether a predetermined tolerance and / or transmission reliability of the proximity-based service communication on a particular spectrum resource is greater than or equal to a predetermined threshold, by using a current parameter (e.g., a default parameter set by the user equipment or a reference parameter notified from the base station) And may include the maximum signal strength that is acceptable by the user equipment if satisfied.

In one implementation, when notifying a reference parameter from a base station, the processing circuitry 110 may also be configured to control the user equipment to obtain a reference value of the parameter from the base station. The reference value of the parameter is determined by the base station side based on, for example, the reference signal strength in a predetermined area and the target tolerance and / or transmission reliability of the proximity-based service communication. That is, if the signal strength (interference strength) in a predetermined area is the reference signal strength and the user equipment operates with the reference parameter, the target tolerance and / or transmission reliability can be met.

The adjustment unit 115 may be configured to adjust the parameter with the offset obtained based on the reference information and the sensed signal strength. As described above, the reference information obtained by the acquisition unit 111 corresponds to an estimate of the signal strength (potential interference level) in a predetermined area, and the sensing unit 113 senses the actual signal strength. Thus, the parameter may be offset based on the difference between the sensed signal strength and the reference information, and the target tolerance and / or transmission reliability may still be satisfied at the actual interference level.

Also, the target grant rates / transmission reliability for different resource pools of the proximity-based service communication may be different, or the relationships between grant rates / transmission reliability and interference strengths may be different. Thus, the reference value of the parameter can be set individually for different resource pools.

Further, the adjustment range for the parameter can be limited. In one implementation, the adjustment unit 115 is configured to adjust the parameters within a predetermined range. The case where the CCA threshold value acts as an example can be given. For example, the upper and lower limits of the CCA threshold can be set. For example, if the lower limit of the CCA threshold is reached, the CCA threshold is no longer reduced even if the target tolerance is not met.

For example, if a plurality of systems or operators coexist, the adjustment range of the parameter is agreed, and the CCA threshold is excessively reduced to achieve the respective target tolerances, The case of excessively increasing the transmit signal power of the signal can be avoided.

In addition, proximity-based services may include portions of different service priorities. Taking V2X communication as an example, communication related to safety can have a high priority, communication for traffic congestion messages can have medium priority, and communication for advertising messages can have low priority.

In one implementation, the coordination unit 115 may be configured to adjust the parameters based on the service priority of the proximity-based service communication so that the acceptance rate of the high priority service and / or the transmission reliability reaches a predetermined level . That is, the allowance rate and / or the transmission reliability of the high priority service are secured with priority.

Further, in one embodiment, the sensing unit 113 and the coordinating unit 115 may perform sensing and calibration operations only periodically or only if predetermined triggering conditions are met. For example, the sensing and adjusting operations may be triggered if no spectral resources for proximity-based service communication are found within a predetermined time period.

Next, an exemplary embodiment will be described with reference to FIG. In this example, the user equipment is a vehicle, the proximity-based service communication is a V2X communication, and the parameter is a CCA threshold. It should be understood that some aspects of this example may also apply to other application scenarios.

13 shows a schematic diagram of an information interaction process between a base station (eNB) or a roadside device (RSU) 1310 and a user equipment (UE) 1320. FIG.

In process 1, the eNB / RSU 1310 is configured to communicate with the UE 1320 (e. G., The UE 1320) based on the movement characteristics (e.g., vehicle speed and direction) of the UE 1320 (Hereinafter also referred to as a " target area ") beyond the signal coverage area of the eNB / RSU 1310 by the network signal.

In process (2), the eNB / RSU 1310 sends to the UE 1320 reference information of the signal strength at the target area in which the UE 1320 is about to enter. In this example, the density of the user equipments in the target area reflects the interference signal intensity in the target area. Thus, the reference information may include interference information I received from the reference interference source by the target node or other information for the CCA threshold adjustment, such as the threshold of the reference CCA, And an adjustment offset to the reference CCA.

In process (3), the V2X UE 1320 performs density estimation in the target area based on the signal measurements. This operation may be triggered periodically or when no available resources are found within a predetermined time threshold.

Also, in process (3), the UE 1320 may select a resource pool corresponding to the service, for example, from the preset available resource pools, and perform a sensing operation on the selected resource pool.

For example, a resource pool can be selected in the following manner. Using the wide bandwidth under the same conditions can increase the transmission rate, reduce the message transmission delay, and thus reduce the message collision probability. Resource pools can be ranked in descending order of unit resource bandwidth to form a ring sequence starting from the resource pool with the widest unit bandwidth, and the resource pool can be selected for each service based on the ring sequence. In the resource pool selection process, the following features may be considered individually or in combination.

(i) the priority of the service X, which is characterized by the rank (X) and is generally characterized by the probability of obtaining a resource and the requirement for a transmission delay, can be considered. A high priority corresponds to a high probability of obtaining a usable channel and requires a short message transmission delay. Therefore, for a service having a high priority, a resource pool having a wide unit resource bandwidth is initially selected, and for a service having a low priority, a resource pool having a narrow unit resource bandwidth is initially selected.

(ii) Message length can be considered. For a service having a long message length, a resource pool having a wide unit resource bandwidth is initially selected, and for a service having a short message length, a resource pool having a narrow unit resource bandwidth is initially selected.

(iii) requirements for information reception may be considered. The device typically has only one set of transmit and receive devices, resulting in half-duplex characteristics, i.e. information reception and transmission can not be performed at the same time. When the information transmitted by the other UE arrives when the target UE performs the transmission, it can not receive information due to half-duplex characteristics. The solution to this problem is to increase the bandwidth of the sending resources and reduce the time required. Thus, if the user equipment is highly required to receive messages from other network nodes, a resource pool with a narrow unit resource bandwidth is initially selected.

이고, 가용 채널 평가 임계값이

라고 가정한다.

의 경우, 채널은 가용 채널로 간주되며 직접 사용될 수 있다. 미리 설정된 시간 임계값 내에 사용가능한 자원이 발견되지 않는 경우, 간섭이 강화된 것으로 표시되고, 가용 채널 평가 임계값

는 리셋될 수 있다. 이 경우, 다른 채널에 대한 감지된 결과가 리셋을 수행하도록 선택될 수 있다. 최소 신호 강도 또는 중간 신호 강도를 갖는 채널이 선택될 수 있거나, 또는 채널이 또한 타겟 채널로서 무작위로 선택될 수 있다.After the resource pool is selected, the UE performs signal detection on resources in the resource pool. If the detected signal strength of the target channel is

, And the available channel estimation threshold value

.

, The channel is considered an available channel and can be used directly. If no available resources are found in the preset time threshold, the interference is marked as enhanced and the available channel estimation threshold

Can be reset. In this case, the sensed result for the other channel may be selected to perform a reset. A channel having a minimum signal strength or an intermediate signal strength may be selected, or a channel may also be randomly selected as a target channel.

이고, 네트워크에 의해 제공된 타겟 노드가 기준 간섭 소스로부터 간섭 신호 I를 수신한다고 가정한다. 이 경우, 간섭 소스들의 밀도는

으로 추정되며, 여기서 N은 환경 잡음을 나타낸다. 대안적으로, 네트워크는 기준 간섭 소스 및 채널 모델의 정보를 제공할 수 있으며, 송신 전력은

이고, 채널 계수는

이고, 타겟 노드까지의 거리는 d이며, 경로 손실 지수는

이다. 이 경우, 타겟 노드에 의해 수신된 집성 간섭 신호는

으로 표현되고, n은 계산될 수 있다.

은 네트워크에서 자원을 사용하는 노드들의 밀도를 나타낸다.If the detected signal strength of the target channel is

, And the target node provided by the network receives the interference signal I from the reference interference source. In this case, the density of the interference sources

, Where N represents environmental noise. Alternatively, the network may provide information on a reference interference source and channel model,

, And the channel coefficient is

, The distance to the target node is d, and the path loss index is

to be. In this case, the aggregate interference signal received by the target node

, And n can be calculated.

Represents the density of nodes using resources in the network.

Next, in process (4), UE 1320 performs CCA threshold adjustment.

에 대응하는 가용 채널 평가 임계값이

이고, 대응하는 스펙트럼 자원에 대한 노드의 허용 확률이

으로 계산된다고 가정한다.

은 n에 따라 증가한다. 즉, 특정 영역에 대해, 사용자들의 평균 서비스 도달률이 일정한 경우, 사용자들의 수가 증가함에 따라 집성 간섭이 증가하여 CCA 임계값이 일정한 경우 허용 확률이 감소하게 된다. 특정 서비스 또는 서비스 타입의 허용 확률을 일정하게 유지하기 위해, CCA 임계값은 상이한 서비스들에 대해 그에 따라 조정된다.density

The available channel estimation threshold corresponding to < RTI ID = 0.0 >

, And the acceptance probability of the node for the corresponding spectrum resource is

.

Increases with n. That is, if the average service arrival rate of users is constant for a specific area, the aggregation interference increases as the number of users increases, and the tolerance decreases when the CCA threshold is constant. In order to keep the admission probability of a particular service or service type constant, the CCA threshold is adjusted accordingly for the different services.

In the case of increasing the allowance rate of the higher priority service and lowering the allowance rate of the lower priority service, the adjustment strategy (the adjustment strategy can be informed to the UEs in advance by the eNB, Can be performed, for example, in the following ways.

In the first scheme, the CCA threshold is increased for high priority services and the CCA threshold is kept constant for low priority services. In this way, the CCA threshold can be adjusted more flexibly for higher priority services as needed, but density estimation and other operations need to be performed in the adjustment process, which increases the computational consumption.

In the second scheme, the CCA threshold is reduced for low priority services and the CCA threshold is kept constant for high priority services. In this manner, operations to measure and reduce the CCA threshold are performed by the UE performing the low priority service, and since the UE performing the high priority service need not perform the density estimation operation and other operations, Consumption and access delay are reduced, but the allowance rate of the higher priority service increases only when the aggregation interference decreases due to the adjustment of the CCA threshold for the lower priority service.

In the third scheme, the CCA threshold is increased for high priority services and the CCA threshold is decreased for low priority services.

In the fourth scheme, the CCA threshold is increased for both the higher priority service and the lower priority service, and the CCA threshold is increased faster for the higher priority service than the lower priority service.

In a fifth manner, the CCA threshold is reduced for both the high priority service and the low priority service, and the CCA threshold is reduced faster for the lower priority service than the high priority service.

가 미리 설정된다. CCA 임계값을 증가시키는 경우를 예로 들면, 기준 CCA 임계값은

이고, 기준 CCA 임계값에 대응하는 기준 밀도가

이며, 밀도

에 대응하는 CCA 임계값이

라고 가정한다. 또한, 상이한 우선순위들을 갖는 서비스들에 대해 상이한 조정 오프셋들이 설정될 수 있다. 즉,

는 서비스 타입

의 함수이며, 상이한 서비스 타입들에 따라 달라진다.The specific adjustment process can be performed as follows. The adjustment offset corresponding to the change in unit density

Is set in advance. As an example of increasing the CCA threshold, the reference CCA threshold is

, And the reference density corresponding to the reference CCA threshold is

And density

Lt; RTI ID = 0.0 > CCA < / RTI &

. In addition, different adjustment offsets may be set for services with different priorities. In other words,

Service type

And depends on the different service types.

It should be noted that when the density of users is constant for a specific region, the average probability of interference increases as the average service arrival rate of users increases, and the tolerance decreases when the CCA threshold is constant. This situation may be equivalent to a situation where the average service reach rate is constant and the density of users increases.

Next, another exemplary embodiment will be described with reference to Fig. In this example, the user equipment is a vehicle, the proximity-based service communication is a V2X communication, and the parameter is the frequency and / or frequency of sending messages using proximity-based service communication. It should be understood that some aspects of this example may also apply to other application scenarios.

As shown in Fig. 14, in process (1), the eNB / RSU 1410 determines that the UE 1420 is about to enter the target area.

In process (2), the eNB / RSU 1410 sends to UE 1420 reference interference source information for density estimation in the target area where UE 1420 is about to enter and reference information needed for message control coordination . In this example, the reference information includes a reference frequency and a reference frequency at which messages are transmitted, a density of corresponding network nodes, and reference adjustment offsets for the frequency and frequency of sending messages.

In process (3), UE 1420 performs density estimation in areas not covered by the network based on the signal measurements. The detailed process can refer to process (3) described above with reference to FIG.

In process 4, the UE 1420 performs message control coordination. Specifically, the frequency and number of transmission of service messages are adjusted to increase the allowance rate of the target service. The frequency of sending messages refers to the number of times that messages are transmitted per unit time, including the frequency of the same message and the frequency of different messages. In addition, the number of times the same message is transmitted may be limited. By increasing the frequency and frequency of sending messages, the resource share of the service can be increased. By reducing the frequency and frequency of sending messages, it is possible to reduce the resource occupancy of the service and increase the acceptance rate of other services for the same resource. If the estimated density increases, the frequency and frequency of sending messages are adjusted accordingly for different services, in order to keep the admission probability of a particular service or service type constant. Specific adjustment strategies and schemes may refer to process (4) described above in connection with FIG.

Next, another exemplary embodiment will be described with reference to Fig. In this example, the user equipment is the vehicle, the proximity-based service communication is the V2X communication, and the parameter is the signal transmission power. It should be understood that some aspects of this example may also apply to other application scenarios.

As shown in Fig. 15, in process (1), the eNB / RSU 1510 determines that the UE 1520 is about to enter the target area.

In process (2), the eNB / RSU 1510 sends the UE 1520 reference interference source information and a target failure rate for failure rate estimation.

를 획득하기 위한 밀도 추정에 기반하여 수행되거나, 또는 에너지 추정만이 간섭 및 잡음의 합, 즉

으로 표현될 수 있는

을 획득하도록 수행된다.In process (3), the UE 1520 performs a failure rate estimation in an area not covered by the network based on the signal measurements. This operation can be triggered either in a timer triggered manner or when the result of the interference signal measurement changes. The failure rate estimation is based on the signal-to-interference and noise ratio SINR (Nd)

Or only the energy estimate is based on the sum of the interference and noise, i. E.

Which can be expressed as

.

이고, Ns에 대한 채널 계수가

이고, 기준점 Ni로부터 Ns까지의 거리가 d이고, 기준점 Ni의 송신 전력이

이고, Ni에 대한 채널 계수가

이고, Ns 서비스에 대응하는 유효 신호 범위가 Ns를 중심으로 하고 r을 반경으로 하는 A라고 가정한다. A에서의 한 지점을 Nd라고 할 때, Nd의 신호 대 간섭 및 잡음비는

로 표현될 수 있다. 정확한 복조된 신호의 신호 대 간섭 및 잡음비 임계값이

이고, Ns 서비스의 유효 범위에서의 고장률이

로 추정된다고 가정한다.

은 사용자들이 주어진 범위 A에서 균일하게 분포하는 범위 내의 총 사용자 수에 대한, Ns 신호를 정확하게 수신할 수 없는 사용자 수의 비율을 나타낼 수 있다.As shown in Fig. 16, when the signal source is Ns and the transmission power of Ns is

, And the channel coefficient for Ns is

, The distance from the reference point Ni to Ns is d, and the transmission power of the reference point Ni is

, And the channel coefficient for Ni is

, And the effective signal range corresponding to the Ns service is assumed to be centered on Ns and A having radius r. A point in A is Nd, the signal-to-interference and noise ratio of Nd is

. ≪ / RTI > The precise demodulated signal's signal-to-noise and noise ratio threshold

, And the failure rate in the effective range of the Ns service is

.

May represent the ratio of the number of users that can not correctly receive the Ns signal for the total number of users in a range that is uniformly distributed in a given range A by users.

에 요구된 고장률은

라고 가정한다. 타겟 송신 전력이 타겟 고장률에 부합하는 최소 송신 전력을 나타내는

로 표현되는 경우에, 타겟 고장률에 대응하는 타겟 송신 전력에 기반하여 전력이 조정될 수 있다.In process (4), the required power is calculated based on the target failure rate. Specifically, for service X, the service type

The required failure rate

. If the target transmit power represents the minimum transmit power that matches the target failure rate

The power can be adjusted based on the target transmission power corresponding to the target failure rate.

Exemplary embodiments have been described above with respect to the CCA threshold value, the frequency and / or frequency of sending messages, and the signal transmit power, each of which serves as the adjusted parameter. It should be understood that this disclosure is not limited to the specific details in these examples. For example, in these examples, the intensity of the interfering signal in the target area is reflected with the density of the user equipment in the target area, but in fact, based on the intensity of the signal (as an interference source) on a particular spectral resource in the target area Parameter adjustment is still performed to achieve the desired communication performance.

In the embodiments described above, the target user equipment adjusts the parameters based on the reference information obtained from the base station and the signal strength detected by the target user equipment itself. However, if the base station side is able to obtain operational status information of user equipments in the target area, including at least one of time information, location information and spectral resource information, the base station side may determine that the target user equipments are provided by the base station side It is possible to more accurately determine the mutual interference between the user equipments in the target area so that the parameter adjustment can be performed based only on the information. In this case, the base station side needs to acquire the corresponding information from the user equipments. The user equipment can transmit operation state information to the base station in a real time manner. In this case, the time at which the status information is transmitted also corresponds to the time at which the spectrum resource is used. Alternatively, the user equipment may send operational status information to the base station after being covered by the network. In this case, the time information may indicate the time at which the spectrum resource is used instead of the time at which the state information is transmitted. In addition, the time information may include a time instant at which the spectrum resource is used or a time period at which the spectrum resource is used.

As shown in FIG. 2, the electronic device 200 on the user equipment side according to another embodiment includes a processing circuit 210. The processing circuit 210 includes an acquisition unit 211, a sensing unit 213, a coordinating unit 215 and a reporting unit 217. [ The configurations of acquisition unit 211, sense unit 213 and coordination unit 215 are similar to those of acquisition unit 111, sense unit 113 and coordination unit 115 described above in connection with FIG. 1 , And a description thereof will be omitted in this specification.

The reporting unit 217 is configured to report the operational status information of the user equipment to the serving base station of the user equipment when the user equipment is located in the coverage area of the communication network to which the user equipment belongs. The operational status information includes at least one of time information, location information, and spectrum resource information for proximity-based service communication. For example, the reported information may be used by a base station with information reported by other user equipment to be provided to a target user equipment (not necessarily a user equipment corresponding to the electronic device 200) Parameter adjustments can be made by determining the signal strength on a particular spectral resource.

Fig. 3 shows an example of the configuration of an information processing apparatus on the user equipment side according to the embodiment of the present disclosure. The information processing apparatus 300 includes a transmission / reception device 310 and a processing circuit 320. The processing circuit 320 includes an acquisition unit 321, a sensing unit 323 and a coordination unit 325. [

Acquisition unit 321 is configured to control transmission / reception device 310 to acquire reference information of signal strength on a specific spectrum resource in a predetermined area from the base station. The sensing unit 323 is configured to control the user equipment to sense the signal strength on a particular spectrum resource if the user equipment is located in a predetermined area. The coordination unit 325 is configured to control the user equipment to adjust parameters for performing proximity-based service communication in a predetermined area based on the reference information and the sensed signal strength to achieve the desired communication performance. These parameters affect the acceptance rate and / or transmission reliability of the proximity-based service communication.

More detailed configurations of acquiring unit 321, sensing unit 323 and coordination unit 325 are illustrated in Figure 1 with the configurations of acquisition unit 111, sensing unit 113 and coordination unit 115 described above in connection with Figure 1 And descriptions thereof are omitted in this specification.

In the foregoing description of the embodiments of the present disclosure, it is evident that some processes and methods are also disclosed. Next, the information processing method of the user equipment side according to one embodiment of the present disclosure will be described without repeating the above-mentioned specific details.

As shown in Fig. 4, the information processing method on the user equipment side according to the present embodiment includes the following steps S410 to S430.

In S410, reference information of the signal strength on a specific spectrum resource in a predetermined area is obtained from the base station.

At S420, if the user equipment is located in a predetermined area, the signal strength on the specific spectrum resource is sensed.

In S430, the parameters for performing proximity-based service communication in the predetermined area are adjusted based on the reference information and the sensed signal strength to achieve the desired communication performance. These parameters affect the acceptance rate and / or transmission reliability of the proximity-based service communication.

Further, in the present disclosure, a device and a method on the base station side are further provided.

As shown in FIG. 5, the electronic device 500 on the base station side according to an embodiment includes a processing circuit 510. The processing circuit 510 includes an acquisition unit 511 and a transmission unit 513.

Acquisition unit 511 is configured to control the base station to obtain movement information of the target user equipment.

If it is determined that the target user equipment is about to enter the predetermined area on the basis of the movement information, the transmitting unit 513 controls the base station so that the base information of the signal strength on the specific spectrum resource and / Based service communication to the target user equipment.

The predetermined area may be, for example, an area not covered by the communication network to which the target user equipment belongs, and the target user equipment may autonomously perform parameter adjustment based on the reference information obtained when not covered by the network can do. Specific spectrum resources may include, for example, Internet-specific spectral resources of vehicles or spectrum resources on unlicensed frequency bands. The signal strength on a particular spectrum resource may reflect the density or number of other user equipment operating on a particular spectrum resource. If the current user equipment performs proximity-based service communication using a specific spectrum resource in the target area, the other user equipment acts as interference sources in the proximity-based service communication. The proximity-based service communication may include, for example, MTC, D2D communication, V2X communication, IOT communication, and the like. The parameters for performing proximity-based service communications in a predetermined area may include, for example, a CCA threshold, frequency and / or frequency of sending messages, and signal transmit power.

The base station can acquire the reference information in various ways. For example, the base station can estimate the reference information in a predetermined area based on the history data of the entire network. Alternatively, the base station may obtain location and movement information of the user equipment that the base station is responsible for obtaining the number of vehicles entering the predetermined area, and then estimate the reference information using the regular service model . Alternatively, the user equipment may itself store the measurement results in the target area, respectively, report the measurement results, if any, to the base stations, share the measurement results among the base stations, The base station at the edge of the region may determine the reference information based on the measurement results.

In addition, as described above, when the base station side can acquire the location information and the spectrum resource information of the user equipments in the target area, the base station side can compare the base station information with the user equipments in the target area, The mutual interference can be determined more accurately and the target user equipment can perform parameter adjustment based only on the information provided by the base station side.

6, the electronic device 600 on the base station side according to one embodiment includes a processing circuit 610. [ The processing circuit 610 includes an acquisition unit 611, an estimation unit 613, and a transmission unit 615.

The acquiring unit 611 in this embodiment has a function of controlling the base station in comparison with the acquiring unit 511 described above with reference to Fig. 5, so as to additionally acquire operation state information of a plurality of user equipments from a plurality of user equipments . The operational status information includes at least one of time information, location information, and spectrum resource information for proximity-based service communication.

Estimating unit 613 is configured to estimate the density or number of other user equipment (other than the target user equipment) operating on a specific spectrum resource in a predetermined area based on the obtained operating state information.

The transmitting unit 615 in this embodiment is further configured to notify the target user equipment of an estimated density or an estimated number of other user equipments as compared to the transmitting unit 513 described above with respect to Fig. 5 .

Thus, the target user equipment can perform parameter adjustment based on the information provided by the base station side without sensing the signal strength on the specific spectrum resource.

Next, an exemplary embodiment will be described with reference to Fig. In this example, the user equipment is a vehicle and the proximity-based service communication is V2X communication. It should be understood that some aspects of this example may also apply to other application scenarios.

As shown in FIG. 17, in process 1, a UE 1720 in the signal coverage area of the eNB / RSU 1710 transmits operation state information including at least time information and location information to an eNB / (UE) 1710 periodically, or the UE 1720 additionally reports the resource pool information used.

In process (2), the eNB / RSU 1710 estimates the density of network nodes based on operation state information and the like. In addition, the density of network nodes in each resource pool may be estimated along with the resource pool information used by the network nodes.

In process 3, the eNB / RSU 1710 sends to UE 1720 the network node density estimation results and the reference information needed to adjust system parameters (such as CCA threshold, message control parameters and power control parameters) .

In process (4), the UE 1720 adjusts the CCA threshold, message control parameter or power control parameter based on the reference information and the network node density information necessary for system parameter adjustment. The specific parameter adjustment method can refer to the above-mentioned examples.

7 shows a configuration example of an information processing apparatus on the base station side according to an embodiment. As shown in Fig. 7, the information processing apparatus 700 includes a transmission / reception device 710 and a processing circuit 720. Fig. The processing circuit 720 includes an acquisition unit 721 and a transmission unit 723. [ Acquisition unit 721 is configured to control the base station to obtain movement information of the target user equipment. If it is determined that the target user equipment is about to enter a predetermined area based on the movement information, the transmitting unit 723 controls the transceiver to transmit the reference information of the signal strength on the specific spectrum resource in the predetermined area to the target user equipment Lt; / RTI >

8 shows a method of information processing on the base station side according to an embodiment. The method includes the following steps S810 and S820.

At S810, movement information of the target user equipment is acquired.

If it is determined at S820 that the target user equipment is about to enter the predetermined area based on the movement information, the base information of the signal strength on the specific spectrum resource and / or the parameter for performing the proximity-based service communication in the predetermined area Is transmitted to the target user equipment.

9 shows an example of the configuration of an electronic device on the user equipment side according to an embodiment. The electronic device 900 includes an acquisition unit 910, a sensing unit 920, and a coordination unit 930. Acquisition unit 910 is configured to control user equipment to obtain reference information of signal strength on a specific spectrum resource from a base station in a predetermined area. The sensing unit 920 is configured to control the user equipment to sense signal strength on a particular spectrum resource if the user equipment is located in a predetermined area. The coordination unit 930 is configured to control the user equipment to adjust parameters for performing proximity-based service communication in a predetermined area based on the reference information and the sensed signal strength to achieve the desired communication performance. These parameters affect the acceptance rate and / or transmission reliability of the proximity-based service communication.

10 shows an example of the configuration of an information processing apparatus on the user equipment side according to another embodiment. The information processing apparatus 1000 includes a transmission / reception unit 1040, an acquisition unit 1010, a detection unit 1020, and a coordination unit 1030. [ Acquisition unit 1010 is configured to control transmit / receive unit 1040 to obtain reference information of signal strength on a specific spectrum resource in a predetermined area from a base station. The sensing unit 1020 is configured to control the user equipment to sense signal strength on a specific spectrum resource if the user equipment is located in a predetermined area. The coordinating unit 1030 is configured to control the user equipment to adjust parameters for performing proximity-based service communication in a predetermined area based on the reference information and the sensed signal strength, to achieve the desired communication performance. These parameters affect the acceptance rate and / or transmission reliability of the proximity-based service communication.

11 shows an electronic device on the base station side according to another embodiment. The electronic device 1100 includes an acquisition unit 1110 and a transmission unit 1120. Acquisition unit 1110 is configured to control the base station to obtain movement information of the target user equipment. If it is determined that the target user equipment is about to enter the predetermined area on the basis of the movement information, the transmitting unit 1120 controls the base station so that the base information of the signal strength on the specific spectrum resource and / Based service communication to the target user equipment.

12 shows an information processing apparatus on the base station side according to another embodiment. The information processing apparatus 1200 includes a transmission / reception unit 1230, an acquisition unit 1210, and a transmission unit 1220. Acquisition unit 1210 is configured to control the base station to obtain movement information of the target user equipment. If the target user equipment is determined to be about to enter the predetermined area on the basis of the movement information, the transmitting unit 1220 controls the transmitting / receiving device to transmit the reference information of the signal strength on the specific spectrum resource and / Based service communication to the target user equipment.

By way of example, the steps of the above-described method and the configuration modules and / or units of the devices described above may be implemented in software, firmware, hardware, or a combination thereof. In the case of implementing by software or firmware, a program constituting software for implementing the above-described method is installed from a storage medium or a network to a computer having a dedicated hardware structure (for example, the general computer 2000 shown in Fig. 18) . Such a computer can perform various functions when various programs are installed.

In Figure 18, an arithmetic processing unit (i.e., CPU) 2001 reads programs stored in a read only memory (ROM) 2002 or programs loaded from a store 2008 into a random access memory (RAM) To perform various types of processing. Data required when the CPU 2001 performs various types of processing is stored in the RAM 2003 as needed. The CPU 2001, the ROM 2002, and the RAM 2003 are connected to each other through a bus 2004. An input / output interface 2005 is also connected to the bus 2004.

The input / output interface 2005 includes the following components: an input section 2006 (including a keyboard, a mouse, etc.), an output section 2007 (a display such as a cathode ray tube (CRT) A storage unit 2008 (including a hard disk), and a communication unit 2009 (including a network interface card such as a LAN card, a modem, etc.). The communication unit 2009 performs communication processing through a network such as the Internet. The driver 2010 may also be connected to the input / output interface 2005 as required. The removable medium 2011, for example, a magnetic disk, an optical disk, a magneto-optical disk and a semiconductor memory may be installed in the driver 2010 as required, and the computer programs read from the removable medium 2011 may be stored (2008).

If the above-described series of processing is implemented by software, the programs constituting the software are installed from a storage medium such as a network or removable medium 2011 such as the Internet.

Those skilled in the relevant art will appreciate that the storage medium is not limited to the removable medium 2011 shown in FIG. 18, which is distributed separately from the device for storing the programs and providing the programs to the user. Examples of the removable medium 2011 include a magnetic disk (including a floppy disk), an optical disk (including a CD-ROM and a DVD), a magneto-optical disk (a mini-disk (registered trademark) And a semiconductor memory. Alternatively, the storage medium may be a ROM 2002, a hard disk included in the storage unit 2008, and the like. The programs are stored in a storage medium, and the storage medium is distributed to the user together with the device including the storage medium.

According to one embodiment of the present disclosure, there is further provided a program product for storing machine readable instruction codes. When read and executed by a machine, the instruction codes cause the machine to perform the above-described method according to an embodiment of the present disclosure.

Thus, a storage medium for carrying the above-described program product that stores machine readable instruction codes is also included in the present disclosure. Storage media include, but are not limited to, floppy disks, optical disks, magneto-optical disks, storage cards, memory sticks, and the like.

Embodiments of the present disclosure also relate to electronic devices such as the following. If the electronic device is at the base station side, the electronic device may be implemented as any type of evolved Node B (eNB), such as a macro eNB and a small eNB. A small eNB may be an eNB that covers a smaller cell than a macro cell, such as a pico eNB, a micro eNB, or a home (femto) eNB. Alternatively, the base station may be implemented as a Node B and any other type of base station, such as a base station transceiver (BTS). The electronic device may include a body configured to control wireless communications (also referred to as a base station device) and one or more remote wireless heads (RRH) disposed at different locations from the body. In addition, the various types of terminals described below may operate as a base station by performing the functions of the base station temporarily or in a ring-based manner.

In the case where the electronic device is on the user equipment side, the electronic device may be a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle mobile router and a digital camera) Such as a navigation device). Further, the electronic device may be a wireless communication module (such as an integrated circuit module comprising one or more chips) installed in each of these terminals.

[Application example concerning terminal device]

19 is a block diagram illustrating a schematic configuration example of a smartphone 2500 to which the teachings of the present disclosure may be applied. The smartphone 2500 includes a processor 2501, a memory 2502, a storage 2503, an external connection interface 2504, a camera 2506, a sensor 2507, a microphone 2508, an input device 2509, Includes at least one of an apparatus 2510, a speaker 2511, a wireless communication interface 2512, one or more antenna switches 2515, one or more antennas 2516, a bus 2517, a battery 2518, and a secondary controller 2519 do.

The processor 2501 may be, for example, a CPU or a system on chip (SoC) and controls functions of the application layer and other layers of the smartphone 2500. The memory 2502 includes a RAM and a ROM, and stores programs and data to be executed by the processor 2501. [ The storage 2503 may include a storage medium such as a semiconductor memory and a hard disk. The external connection interface 2504 is an interface for connecting an external device (such as a memory card and a universal serial bus (USB) device) to the smartphone 2500.

The camera 2506 includes an image sensor (such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS)) and produces a captured image. The sensor 2507 may include a group of sensors such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 2508 converts the sounds input to the smartphone 2500 into audio signals. The input device 2509 includes, for example, a touch sensor, a keypad, a keyboard, a button or a switch configured to detect a touch on the screen of the display device 2510, and receives an operation or information input from the user. Display device 2510 includes a screen (such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display) and displays the output image of smartphone 2500. The speaker 2511 converts the audio signals output from the smartphone 2500 into sounds.

The wireless communication interface 2512 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 2512 may typically include a baseband (BB) processor 2513 and a radio frequency (RF) circuit 2514, for example. The BB processor 2513 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. RF circuit 2514, on the other hand, may include, for example, a mixer, a filter, and an amplifier, and transmits and receives radio signals via antenna 2516. The wireless communication interface 2512 may be a chip module in which the BB processor 2513 and the RF circuit 2514 are integrated. As shown in FIG. 19, the wireless communication interface 2512 may include a plurality of BB processors 2513 and a plurality of RF circuits 2514. 19 shows an example in which the wireless communication interface 2512 includes a plurality of BB processors 2513 and a plurality of RF circuits 2514. The wireless communication interface 2512 also includes a single BB processor 2513, (2513) or a single RF circuit (2514).

In addition to the cellular communication scheme, the wireless communication interface 2512 may support other types of wireless communication schemes such as a short-range wireless communication scheme, a near field communication scheme, and a wireless local area network (LAN) scheme. In this case, the wireless communication interface 2512 may include a BB processor 2513 and an RF circuit 2514 for each wireless communication method.

Each of the antenna switches 2515 switches the connection destinations of the antennas 2516 between a plurality of circuits (such as circuits for different wireless communication schemes) included in the wireless communication interface 2512.

Each of the antennas 2516 includes a single or a plurality of antenna elements (such as a plurality of antenna elements included in a MIMO antenna), and a wireless communication interface 2512 is used to transmit and receive wireless signals. As shown in FIG. 19, the smartphone 2500 may include a plurality of antennas 2516. 21 illustrates an example in which the smartphone 2500 includes a plurality of antennas 2516, the smartphone 2500 may also include a single antenna 2516. [

The smartphone 2500 may also include an antenna 2516 for each wireless communication scheme. In this case, the antenna switches 2515 may be omitted from the configuration of the smartphone 2500.

The bus 2517 includes a processor 2501, a memory 2502, a storage 2503, an external connection interface 2504, a camera 2506, a sensor 2507, a microphone 2508, an input device 2509, Device 2510, speaker 2511, wireless communication interface 2512, and auxiliary controller 2519 to each other. The battery 2518 powers the blocks of the smartphone 2500 shown in Fig. 10 through the supply lines shown partially in dashed lines in Fig. The auxiliary controller 2519 operates, for example, in a sleep mode, at least the necessary functions of the smartphone 2500.

In the smartphone 2500 shown in Fig. 19, the transmitting / receiving device or the transmitting / receiving unit in the information processing apparatus of the user equipment side according to the embodiment of the present disclosure can be implemented by the wireless communication interface 2512. [ At least some of the functions of the processing circuitry and / or units in the electronic device or information processing apparatus on the user equipment side according to embodiments of the present disclosure may also be implemented by the processor 2501 or the auxiliary controller 2519 . For example, the power consumption of the battery 2518 may be reduced by performing some of the functions of the processor 2501 by the subsidiary controller 2519. [ Processor 2501 or auxiliary controller 2519 may also be configured to execute programs stored in memory 2502 or storage 2503 to perform processing on an electronic device or an information processing apparatus on the user equipment side according to an embodiment of the present disclosure Circuits and / or functions of the units.

[Application example related to base station]

20 is a block diagram showing a schematic configuration example of an eNB to which the description of the present disclosure can be applied. The eNB 2300 includes one or more antennas 2310 and a base station device 2320. The base station device 2320 and each antenna 2310 may be connected to each other via an RF cable.

Each of the antennas 2310 includes a plurality of antenna elements, such as a single or a plurality (including a plurality of antenna elements included in a multiple input multiple output (MIMO) antenna), and the base station apparatus 2320 transmits and / Lt; / RTI > As shown in FIG. 20, the eNB 2300 may include a plurality of antennas 2310. For example, the plurality of antennas 2310 may be compatible with a plurality of frequency bands used by the eNB 2300. 20 shows an example in which the eNB 2300 includes a plurality of antennas 2310, the eNB 2300 may also include a single antenna 2310. [

The base station apparatus 2320 includes a controller 2321, a memory 2322, a network interface 2323, and a wireless communication interface 2325.

The controller 2321 may be, for example, a CPU or a DSP and operates various functions of a higher layer of the base station device 2320. For example, the controller 2321 generates a data packet from the data in the signals processed by the wireless communication interface 2325, and forwards the generated packet through the network interface 2323. Controller 2321 may bundle data from a plurality of baseband processors to generate bundled packets and deliver generated bundled packets. The controller 2321 may have logical functions to perform control such as radio resource control, radio bearer control, mobility management, admission control and scheduling. Control may be performed in cooperation with a nearby eNB or core network node. Memory 2322 includes RAM and ROM, and stores various types of control data (such as terminal list, transmit power data, and scheduling data) and programs executed by controller 2321.

The network interface 2323 is a communication interface for connecting the base station apparatus 2320 to the core network 2324. The controller 2321 can communicate with the core network node or another eNB via the network interface 2323. [ In this case, the eNB 2300 and the core network node or other eNBs may be connected to each other via a logical interface (such as an S1 interface and an X2 interface). The network interface 2323 may also be a wired communication interface or a wireless communication interface for a wireless backhaul. If the network interface 2323 is a wireless communication interface, the network interface 2323 can use a frequency band higher than the frequency band used by the wireless communication interface 2325 for wireless communication.

The wireless communication interface 2325 supports any cellular communication scheme (such as LTE (Long Term Evolution) and LTE-Advanced) and provides a wireless connection to a terminal located in a cell of the eNB 2300 via an antenna 2310 . The wireless communication interface 2325 may typically include, for example, a BB processor 2326 and an RF circuit 2327. The BB processor 2326 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing and may include (L1, medium access control (MAC), wireless link control (RLC) packet data convergence protocol). < / RTI > The BB processor 2326 may have some or all of the logical functions described above instead of the controller 2321. [ The BB processor 2326 may be a memory that stores a communication control program, or a module that includes a processor and associated circuitry configured to execute the program. Updating the program may cause the functions of the BB processor 2326 to change. Such a module may be a card or a blade inserted into a slot of the base station apparatus 2320. [ Alternatively, such a module may also be a chip mounted on a card or a blade. RF circuit 2327, on the other hand, may include, for example, a mixer, a filter, and an amplifier, and transmits and receives radio signals via antenna 2310. [

As shown in FIG. 20, wireless communication interface 2325 may include a plurality of BB processors 2326. For example, a plurality of BB processors 2326 may be compatible with a plurality of frequency bands used by the eNB 2300. The wireless communication interface 2325 may include a plurality of RF circuits 2327, as shown in FIG. For example, the plurality of RF circuits 2327 may be compatible with a plurality of antenna elements. 20 illustrates an example in which the wireless communication interface 2325 includes a plurality of BB processors 2326 and a plurality of RF circuits 2327. The wireless communication interface 2325 also includes a single BB processor 2326, 0.0 > 2326 < / RTI > or a single RF circuit 2327.

In the eNB 2300 shown in Fig. 20, the transmitting / receiving device or the transmitting / receiving unit in the information processing apparatus on the base station side according to the embodiment of the present disclosure can be implemented by the wireless communication interface 2325. [ At least some of the functions of the processing circuitry and / or units in the electronic device or information processing apparatus on the base station side according to embodiments of the present disclosure may also be implemented by the controller 2321. For example, the controller 2321 may perform at least one of the functions of the processing circuitry and / or units in the electronic device or information processing apparatus on the base station side according to an embodiment of the present disclosure by executing the programs stored in the memory 2322 You can run some.

[Application example concerning a car navigation apparatus]

21 is a block diagram illustrating a schematic configuration example of a car navigation device 2120 to which the teachings of the present disclosure may be applied. This car navigation device 2120 includes a processor 2121, a memory 2122, a GPS module 2124, a sensor 2125, a data interface 2126, a content player 2127, a storage medium interface 2128, A display 2130, a speaker 2131, a wireless communication interface 2133, one or more antenna switches 2136, one or more antennas 2137 and a battery 2138.

Processor 2121 may be, for example, a CPU or SoC, and controls the navigation and other functions of car navigation device 2120. The memory 2122 includes a RAM and a ROM, and stores programs and data to be executed by the processor 2121.

The GPS module 2124 determines the location (such as latitude, longitude, and altitude) of the car navigation device 2120 using the GPS signals received from the GPS satellites. The sensor 2125 may include a group of sensors such as a gyro sensor, a geomagnetic sensor, and an air pressure sensor. The data interface 2126 is connected to the in-vehicle network 2141 through a terminal not shown, for example, to obtain data (such as vehicle speed data) generated by the vehicle.

The content player 2127 reproduces the content stored in the storage medium (such as CD and DVD) inserted in the storage medium interface 2128. [ The input device 2129 includes, for example, a touch sensor, a button or a switch configured to detect a touch on the screen of the display device 2130, and receives the action or information input from the user. The display device 2130 includes a screen such as an LCD or an OLED display, and displays an image of the navigation function or the content being reproduced. The speaker 2131 outputs the navigation function or sounds of the content to be reproduced.

The wireless communication interface 2133 supports any cellular communication scheme (such as LTE and LTE-advanced) and performs wireless communication. The wireless communication interface 2133 typically may include, for example, a BB processor 2134 and an RF circuit 2135. The BB processor 2134 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing and performs various types of signal processing for wireless communication. RF circuit 2135, on the other hand, may include, for example, a mixer, a filter, and an amplifier, and transmits and receives radio signals via antenna 2137. The wireless communication interface 2133 may also be a chip module in which the BB processor 2134 and the RF circuit 2135 are integrated. The wireless communication interface 2133 may include a plurality of BB processors 2134 and a plurality of RF circuits 2135, as shown in FIG. 21 illustrates an example in which the wireless communication interface 2133 includes a plurality of BB processors 2134 and a plurality of RF circuits 2135. The wireless communication interface 2133 also includes a single BB processor 2134, 0.0 > 2134 < / RTI > or a single RF circuit 2135.

In addition to the cellular communication method, the wireless communication interface 2133 can support other types of wireless communication methods such as a short-range wireless communication method, a near-field communication method, and a wireless LAN method. In this case, the wireless communication interface 2133 may include a BB processor 2134 and an RF circuit 2135 for each wireless communication method.

Each of the antenna switches 2136 switches the connection destinations of the antennas 2137 between a plurality of circuits (such as circuits for different wireless communication schemes) included in the wireless communication interface 2133.

Each of the antennas 2137 includes a single or a plurality of antenna elements (such as a plurality of antenna elements included in a MIMO antenna), and the wireless communication interface 2133 is used to transmit and receive wireless signals. The car navigation device 2120 may include a plurality of antennas 2137, as shown in Fig. 21 illustrates an example in which the car navigation device 2120 includes a plurality of antennas 2137. The car navigation device 2120 may also include a single antenna 2137. [

In addition, the car navigation device 2120 may include an antenna 2137 for each wireless communication scheme. In this case, the antenna switches 2136 may be omitted in the configuration of the car navigation device 2120.

The battery 2138 powers the blocks of the car navigation device 2120 shown in Fig. 21 through the supply lines shown in part in dashed lines in Fig. The battery 2138 accumulates electric power supplied from the vehicle.

In the car navigation apparatus 2120 shown in Fig. 21, the transmitting / receiving device or the transmitting / receiving unit in the information processing apparatus of the user equipment side according to the embodiment of the present disclosure can be implemented by the wireless communication interface 2133. Fig. At least some of the functions of the processing circuitry and / or units in the electronic device or information processing apparatus on the user equipment side according to embodiments of the present disclosure may also be implemented by the processor 2121. [

The description of the present disclosure may also be implemented as an in-vehicle system (or vehicle) 2140 that includes one or more blocks of vehicle navigation device 2120, in-vehicle network 2141, and vehicle module 2142. Vehicle module 2142 generates vehicle data (such as vehicle speed, engine speed or failure information) and outputs the generated data to in-vehicle network 2141.

In the above description of specific embodiments of the present disclosure, features described and / or illustrated in connection with one embodiment may be used in the same or similar manner in one or more other embodiments, Combined, or may replace features in other embodiments.

It is noted that the term " comprising " as used herein refers to the presence of a feature, element, step or element but does not preclude the presence or addition of one or more other feature, element, step or element .

In the above embodiments and examples, reference numerals are made up of the numbers used to represent steps and / or units. It should be understood by those skilled in the relevant art (s) that such reference numbers are used merely to aid in the description and illustration, and are not intended to represent the order or limitation in any way.

Furthermore, the methods of the present disclosure are not limited to being performed in the chronological order described herein, and may also be performed in different time sequences, in parallel, or independently. Accordingly, the order of performing the methods described herein does not limit the technical scope of the present disclosure.

While this disclosure has been described in terms of specific embodiments in accordance with the present disclosure, it should be understood that all of the foregoing embodiments and examples are illustrative and not restrictive. Various modifications, enhancements, or equivalents of the disclosure can be made by those skilled in the art from the teachings and the scope of the appended claims. Such modifications, improvements, or equivalents are to be interpreted as falling within the scope of protection of the present disclosure.

Claims (22)

As an electronic device on the user equipment side,
Processing circuit,
The processing circuit comprising:
Controlling the user equipment to obtain reference information of signal strength on a specific spectrum resource in a predetermined area from a base station,
Control the user equipment to sense the signal strength on the specific spectrum resource if the user equipment is located in the predetermined area,
To control the user equipment to adjust parameters for performing proximity-based service communication in the predetermined area based on the reference information and the sensed signal strength to achieve desired communication performance,
Wherein the parameter affects the acceptance rate and / or the transmission reliability of the proximity-based service communication. The method according to claim 1,
Wherein the reference information indicates that the user equipment is operating at a current reference value of the parameter and that the user equipment is in a state of being acceptable to the user equipment if the predetermined tolerance and / or transmission reliability of the proximity- Wherein the maximum signal strength is the maximum signal strength. The method according to claim 1,
Wherein the predetermined area is an area not covered by the communication network to which the user equipment belongs. The method according to claim 1,
Wherein the signal strength on the particular spectrum resource reflects the density or number of other user equipment operating on the specific spectrum resource and wherein the other user equipment acts as interference sources of the proximity-based service communication. The method according to claim 1,
Wherein the parameter comprises:
An available channel estimation threshold value for accessing the specific spectrum resource,
The frequency and / or frequency of sending messages using the proximity-based service communication, and
And a signal transmission power of the proximity-based service communication. The method according to claim 1,
Wherein the adjustment comprises adjusting the parameter in a predetermined range. The method according to claim 1,
Wherein the adjustment comprises adjusting the parameter to an offset obtained based on the reference information and the sensed signal strength. The method according to claim 1,
Wherein the adjustment comprises adjusting the parameter based on the service priority of the proximity-based service communication so that the acceptance rate of the high priority service and / or the transmission reliability reaches a predetermined level. The method according to claim 1,
Wherein the specific spectrum resource comprises spectral resources dedicated to vehicle communication and spectral resources over unlicensed frequency bands. The method according to claim 1,
Wherein the processing circuit is further configured to control the user equipment to obtain a reference value of the parameter from the base station. 11. The method of claim 10,
Wherein the reference value of the parameter is set separately for different resource pools. The method according to claim 1,
Wherein the processing circuitry is configured to control the user equipment to perform the sensing and the adjustment periodically or when predetermined triggering conditions are met. 13. The method of claim 12,
Wherein the predetermined triggering condition comprises:
Wherein the spectrum resource for the proximity-based service communication comprises a condition that is not found within a predetermined time period. The method according to claim 1,
The processing circuit comprising:
And to report the operational status information of the user equipment to the serving base station of the user equipment when the user equipment is located within the coverage range of the communication network to which the user equipment belongs, Wherein the operation state information includes at least one of time information, position information, and spectrum resource information for the proximity-based service communication. 15. The method of claim 14,
Wherein the time information comprises a time period during which the spectrum resource is used by the user equipment. 16. The method according to any one of claims 1 to 15,
Wherein the proximity-based service communication comprises machine type communication (MTC), device-to-device (D2D) communication, vehicle-to-object (V2X) communication, and object Internet (IOT) communication. As an information processing apparatus on the user equipment side,
A transmitting and receiving device; And
Processing circuit
The processing circuit comprising:
Receiving device from the base station to obtain reference information of the signal strength on a specific spectrum resource in a predetermined area,
Control the user equipment to sense the signal strength on the specific spectrum resource if the user equipment is located in the predetermined area,
To control the user equipment to adjust parameters for performing proximity-based service communication in the predetermined area based on the reference information and the sensed signal strength to achieve desired communication performance,
Wherein the parameter affects the acceptance rate and / or transmission reliability of the proximity-based service communication. As an information processing method on the user equipment side,
Obtaining, from a base station, reference information of a signal strength on a specific spectrum resource in a predetermined area;
Sensing the signal strength on the specific spectral resource; And
Establishing or reconfiguring transmission parameters for performing proximity-based service communications in the predetermined region based on the reference information and the sensed signal strength to achieve desired communication performance
/ RTI >
Wherein the transmission parameter affects an acceptance rate and / or transmission reliability of the proximity-based service communication. As an electronic device on the base station side,
Processing circuit,
The processing circuit comprising:
Acquiring movement information of a target user equipment by controlling the base station,
And control the base station to transmit to the target user equipment a reference value of a parameter for performing reference information of signal strength on a specific spectrum resource and / or proximity-based service communication in a predetermined area. 20. The method of claim 19,
The control circuit comprising:
Controlling the base station to obtain, from a plurality of user equipments, operating state information of the plurality of user equipments respectively when located in the predetermined area, the operating state information including time information for the near- Location information, and spectral resource information,
Estimate the reference value of the parameter for performing the proximity-based service communication and the reference information of the signal strength on the specific spectrum resource in the predetermined area based on the operation state information,
And to notify the target user equipment of the estimated reference information and the reference value. An information processing apparatus on a base station side,
A transmitting and receiving device; And
Processing circuit
The processing circuit comprising:
Acquiring movement information of a target user equipment by controlling the base station,
Based on the movement information, if it is determined that the target user equipment is about to enter a predetermined area, controlling the transmission / reception device to transmit reference information of a signal strength on a specific spectrum resource and / And transmit a reference value of a parameter for performing communication to the target user equipment. An information processing method on a base station side,
Obtaining movement information of the target user equipment; And
Based on the movement information, if it is determined that the target user equipment is about to enter a predetermined area, a reference information of signal strength on a specific spectrum resource and / or a parameter for performing proximity-based service communication in the predetermined area To the target user equipment
The information processing method comprising the steps of:

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